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[Bug tree-optimization/34416] Tree optimization pipeline needs re-tuning
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2007 12:28:40 -0000
- Subject: [Bug tree-optimization/34416] Tree optimization pipeline needs re-tuning
- References: <bug-34416-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from steven at gcc dot gnu dot org 2007-12-10 12:28 -------
Insert usual rant about running more and more and more and more and more and
more and more and more and more and more and more passes, with total disregard
for compilation time of the common cases where optimization doesn't do anything
but increasing compile time.
Before adding more passes, add some mechanism/heuristics to only run passes
when benefit is expected. Not the whole world is tramp3d. Please take glibc
and the linux kernel (or other codes with almost no abstraction) as compile
time indicators for a change, too.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34416